const_cast: convert some C-style casts and remove some redundant ones

Change-Id: I9f8a64433177ba871fa020c0922a539c3e277bc2

rsc/source/tools/rscdef.cxx

@@ -548,7 +548,7 @@ bool RscFileTab::TestDef( sal_uLong lFileKey, size_t lPos,
     if( lFileKey == pDefDec->GetFileKey() )
     {
         RscFile * pFile = GetFile( pDefDec->GetFileKey() );
-        if( pFile && (lPos <= pFile->aDefLst.GetPos( (RscDefine *)pDefDec ))
+        if( pFile && (lPos <= pFile->aDefLst.GetPos( const_cast<RscDefine *>(pDefDec) ))
             && (lPos != ULONG_MAX ) )
         {
             return false;

rsc/source/tools/rsctree.cxx

@@ -39,7 +39,7 @@ void BiNode::EnumNodes( Link aLink ) const
 {
     if( Left() )
         Left()->EnumNodes( aLink );
-    aLink.Call( (BiNode *)this );
+    aLink.Call( const_cast<BiNode *>(this) );
     if( Right() )
         Right()->EnumNodes( aLink );
 }
@@ -185,7 +185,7 @@ NameNode* NameNode::SearchParent( const NameNode * pSearch ) const
         if( Left() )
         {
             if( ((NameNode *)Left())->Compare( pSearch ) == EQUAL )
-                return (NameNode *)this;
+                return const_cast<NameNode *>(this);
             return ((NameNode *)Left())->SearchParent( pSearch );
         }
     }
@@ -194,7 +194,7 @@ NameNode* NameNode::SearchParent( const NameNode * pSearch ) const
         if( Right() )
         {
             if( ((NameNode *)Right())->Compare( pSearch ) == EQUAL )
-                return (NameNode *)this;
+                return const_cast<NameNode *>(this);
             return ((NameNode *)Right())->SearchParent( pSearch );
         }
     }
@@ -219,7 +219,7 @@ NameNode* NameNode::Search( const NameNode * pSearch ) const
             return ((NameNode *)Right())->Search( pSearch );
     }
     else
-        return (NameNode *)this;
+        return const_cast<NameNode *>(this);
 
     return NULL;
 }
@@ -242,7 +242,7 @@ NameNode* NameNode::Search( const void * pSearch ) const
             return ((NameNode *)Right())->Search( pSearch );
     }
     else
-        return (NameNode *)this;
+        return const_cast<NameNode *>(this);
 
     return NULL;
 }